CN207426691U - A kind of electronic penetration protector - Google Patents
A kind of electronic penetration protector Download PDFInfo
- Publication number
- CN207426691U CN207426691U CN201721416923.0U CN201721416923U CN207426691U CN 207426691 U CN207426691 U CN 207426691U CN 201721416923 U CN201721416923 U CN 201721416923U CN 207426691 U CN207426691 U CN 207426691U
- Authority
- CN
- China
- Prior art keywords
- reed switch
- protector
- switch relay
- diac
- penetration protector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model is related to a kind of second power equipment protective devices, particularly, are related to a kind of electronic penetration protector；Including at least one diac, discharge tube, reed switch relay, current-limiting resistance and counter；Diac is connected in series in penetration protector voltage input end with discharge tube, current-limiting resistance successively；The coils from parallel connection of coils of discharge tube and reed switch relay, the coil of reed switch relay are in parallel with the input terminal of counter；Wherein, one group of normal opened contact of reed switch relay is in parallel with the voltage input end of penetration protector；The utility model electronic penetration protector have the advantages that reliability it is high, can perseveration, residual voltage is low, tolerance dash current is big, operation voltage precision is high, fast response time, especially solve the problems, such as prior art high failure rate, heavy current impact can not be resistant to.
Description
Technical field
The utility model is related to a kind of second power equipment protective devices, particularly, are related to a kind of electronic type breakdown and protect
Protect device.
Background technology
JBO type penetration protectors are widely used in low-voltage power system, can effectively protect Secondary Circuit of Potential Transformer
Overvoltage Intruding wave harm, however tradition JBO types penetration protector is using simple atmospherical discharges interstitial structure, action electricity
Press discreteness big, and without power frequency continued flow ability is born, once breakdown generates larger power frequency continued flow, entire protector will be burnt quickly
Ruining must replace, and also the overvoltage on power grid can not be invaded and send alarm, have producer accordingly without action alert capability in addition
New-style electronic penetration protector is had developed, using voltage detecting circuit and thyristor, once voltage out-of-limit triggers
Controlled silicon conducting carrys out short circuit overvoltage, can bear the power frequency continued flow of some strength, can also send distant place alarm, but silicon-controlled
The characteristics of inborn shock resistance electric current is weaker, is allowed to be very easy to break down in actual use, as that can not recover after puncturing
It insulate and damages, therefore research and develop a kind of high new penetration protector of reliability.
Utility model content
The utility model is directed to above-mentioned technical problem, provides a kind of electronic penetration protector, the utility model electronics
Technical solution is used by formula penetration protector solves above-mentioned technical problem：
A kind of electronic penetration protector, which is characterized in that the electronic penetration protector includes：
At least one diac, discharge tube, reed switch relay, current-limiting resistance and counter；
The diac is connected in series in penetration protector voltage input end with discharge tube, current-limiting resistance successively；Institute
State the coils from parallel connection of coils of discharge tube and reed switch relay, the input terminal of the coil of the reed switch relay and the counter is simultaneously
Connection；Wherein, one group of normal opened contact of the reed switch relay is in parallel with the voltage input end of penetration protector.
Above-mentioned electronic penetration protector, which is characterized in that diac by multiple diac units successively
It is composed in series, each contact of the central point with a Multi-band switch of connecting is connected, and the common junction of the Multi-band switch is with hitting
The one of voltage input end for wearing protector is connected or the common junction of the Multi-band switch and the discharge tube and triggers two
The series connection central point of pole pipe is connected.
Above-mentioned technical proposal has the following advantages that：
The utility model electronic penetration protector have reliability it is high, can perseveration, residual voltage be low, tolerance dash current
Greatly, the advantages of operation voltage precision height, fast response time, especially solve prior art high failure rate, big electricity can not be resistant to
The problem of stream impact.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the utility model and its spy
Sign, shape and advantage will become more apparent.Identical mark indicates identical part in whole attached drawings.It can be by
Attached drawing is drawn according to ratio, it is preferred that emphasis is the purport of the utility model is shown.
Fig. 1 is the structure diagram of the utility model electronic penetration protector.
Specific embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, but not as this practicality
New restriction.
As shown in Figure 1, the utility model electronic penetration protector concrete structure is as follows：
Including at least one diac 1, discharge tube 2, reed switch relay 3, current-limiting resistance 7 and counter 4.At this
In the embodiment of utility model, diac 1 is connected in series in penetration protector voltage with discharge tube 2, current-limiting resistance 7 successively
Input terminal；The coils from parallel connection of coils of discharge tube 2 and reed switch relay 3, the coil of reed switch relay 3 and the input terminal of counter 4
It is in parallel；Wherein, one group of normal opened contact of reed switch relay 3 is in parallel with the voltage input end of penetration protector.
Further, diac 1 is sequentially connected in series by multiple diac units, and each central point of connecting is equal
It is connected with the contact of a Multi-band switch 5, the common junction of Multi-band switch and one of voltage input end of penetration protector
It is connected or the common junction of Multi-band switch is connected with the series connection central point of discharge tube 2 and diac 1.
Preferably, reed switch relay 3 can be manual replacement type and be equipped with two groups of contacts, one group and the breakdown protection
The alarm signal output ends of device are connected.
Technical solutions of the utility model equally have high reliability, operation precision height, action compared with JBO type protectors
Voltage is adjusted, can perseveration, possess the advantages that warning function；Compared with the electronic penetration protector of the prior art,
Punctured using diac, drive self-sustaining reed switch relay, complete machine has high steep without using active semiconductor component
The advantages of heavy current impact tolerance is big is spent, and circuit is simple, of low cost.
As shown in Figure 1, the A-B ends of the present embodiment are in parallel with by protection equipment, C-D ends are hard contact alarm signal output
End can connect power station SCADA system and alarm for teletransmission.When A-B ends generate higher overvoltage Intruding wave, overvoltage Intruding wave
Be triggered diode and discharge tube amplitude limit, in first time over-voltage amplitude, while discharge tube and reed switch relay it
Between be further connected with rectifier bridge 6, triggering reed switch relay 3 acts after the rectified bridge 6 of voltage at both ends, reed switch relay action speed
Degree is fast, can make the excessively electric of A-B ends in short circuit overvoltage Intruding wave, one of which contact short circuit A-B ends immediately within the extremely short time
Pressure is allowed to residual voltage and is close to zero by dead short, and due to the low resistance of relay tip, and another group of contact then connects C-D ends,
For providing alarm signal.Current-limiting resistance 7 prevents relay tip from damaging for limiting electric current；It can be seen that from this circuit
Due to the use of reed switch relay and passive gas-discharge tube, varistor, it is enable to bear overvoltage over-current shock
Power is very strong, and reliability is high, is not easy failure.
The utility model electronic penetration protector have reliability it is high, can perseveration, residual voltage be low, tolerance dash current
Greatly, the advantages of operation voltage precision height, fast response time, especially solve prior art high failure rate, big electricity can not be resistant to
The problem of stream impact.
The preferred embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as with the common side in this field
Formula is practiced；Any those skilled in the art in the case where not departing from technical solutions of the utility model ambit, may be used
Technical solutions of the utility model are made with many possible changes and modifications using the methods and technical content of the disclosure above or is repaiied
The equivalent embodiment of equivalent variations is changed to, this has no effect on the substantive content of the utility model.Therefore, it is every without departing from this practicality
The content of new technique scheme, according to the technical essence of the utility model to it is made for any of the above embodiments it is any it is simple modification, etc.
With variation and modification, still fall within technical solutions of the utility model protection in the range of.
Claims (2)
1. a kind of electronic penetration protector, which is characterized in that the electronic penetration protector includes：
At least one diac, discharge tube, reed switch relay, current-limiting resistance and counter；
The diac is connected in series in penetration protector voltage input end with discharge tube, current-limiting resistance successively；It is described to put
The coils from parallel connection of coils of fulgurite and reed switch relay, the coil of the reed switch relay are in parallel with the input terminal of the counter；
Wherein, one group of normal opened contact of the reed switch relay is in parallel with the voltage input end of penetration protector.
2. electronic penetration protector according to claim 1, which is characterized in that diac is by two poles of multiple triggerings
Pipe unit is sequentially connected in series, and each contact of the central point with a Multi-band switch of connecting is connected, the public affairs of the Multi-band switch
Contact is connected or the common junction of the Multi-band switch and the electric discharge with one of voltage input end of penetration protector altogether
Pipe is connected with the series connection central point of diac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416923.0U CN207426691U (en) | 2017-10-30 | 2017-10-30 | A kind of electronic penetration protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416923.0U CN207426691U (en) | 2017-10-30 | 2017-10-30 | A kind of electronic penetration protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426691U true CN207426691U (en) | 2018-05-29 |
Family
ID=62309325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721416923.0U Expired - Fee Related CN207426691U (en) | 2017-10-30 | 2017-10-30 | A kind of electronic penetration protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207426691U (en) |
-
2017
- 2017-10-30 CN CN201721416923.0U patent/CN207426691U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20201030 |